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X-Hacker.org- The Guide To Clipper - <b>selection </b> http://www.X-Hacker.org [<<Previous Entry] [^^Up^^] [Next Entry>>] [Menu] [About The Guide]
Selection 


   . One of the three basic building blocks of algorithm development
     (the others are sequence and iteration).  Selection allows control
     to flow along a number of possible paths, the actual depending on
     the circumstance encountered.

   . A DBMS term that specifies a subset of records meeting a
     condition.  The selection itself is obtained with a selection
     operator.  In Clipper, the analogy is the FOR clause.


See Also: Sequence Iteration Join Projection

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